Attachment for doorlocks



Feb. 9, 1932. w. E. KELLY ATTACHMENT FOR DOORLOCKS i929 23heets-Sheeb 1 Filed Oct. 5,

INVENTOR M vii ATTORN EY Feb. 9, 1932'. w. E..KEL-.LY

I ATTACHMENT FOR DOORLOCKS Filed 001;. 5, 1929 2 Sheets-Sheet 2 kg; wig};

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4 A i. W W i WITNESS BY mqa.

ATTORNEY Patented Feb. 9, 1932 warren n.- xnnrnor mime, OREGON roe noentocxs ap naamn mea ember 5, ma. seen an. $97,690.

a invention relates to a panic bolt attachment for standard door locks. i, object of the invention is the provision of a bolt and operating means there ior commonly termed a panic boltand op similar elements. adapted to v provision of a crating means for the standing leaf of a pair of swinging doors, in which the operating means will operate the top and bottom bolts with the applicaltion of a very small force thereto, with consequent reduction of noise andjjar usually incident upon the operation of similar devices. 1 i V i further object; of the inventionwis the panic bolt for the standing leaf: otapair pf doors which is "adapted upon the pperat-ion thereof to open position to maintain the bottom bolt in an upward position out: of engagement with the floor,

,1 thereby eliminating the draggingof said lower bolt with consequent scraping of the floor. v a V A further object of the invention is the provision o f'a-n attachment for standard door zv locks in which a portion of the spindle is removed and a specially constructed spindle attached thereto without necessitating any changes inthe standard equipment of the loclt the attachment including an auxiliary spindle having cams adapted to engage lingers on aswingably supported lever "so that when the lever is operated by the usual panic bar the auxiliary spindle and the standard pindle will; be rocked .for releasing the usual bolt from its keepers g "A to her objectofth-e invention is the provision of a panic jbolt attachment 'for standard door locks in which an auxiliary spindle is provided: and which is constructed for ready attachment to the standard spindle of the do orilock and provided with cams or he engaged by fingers or lugs projecting from opposite sides of the swingably" mounted lever), the axis on which the lever swingsheing in the same horizontal plane with the (axis of the auxiliary spindle so thatwhenthe usual panic bari is L noveduto rock the lever the auxiliary spindle and likewise the standard spindle of the -door lock will releas'e the bolt, from its keeper, a spring being employed for returnopening 1 in the bottom of thee-using.

ing the auxiliary spindle and likewise the spindle of the lock to its normal inoperative position. v p a a This invention will be best understood from a consideration of the following detailed d escription ,in view of the accompanying draw= ings forming a part of the specification; nev ertheless it isto be understood that theinvention is not confined to the disclosure, being susceptible of such changes and modifications which shall defineno material departure from the salient features of the invention as can pressed in the appended claim.

the drawings: l a a a p 1,

Figure 1 is a view Iin'elevation ota door showing my panic bolt attachment applied thereto; t

Figure 2 is a vertical section showing my panic bolt attachment applied to the door in Figured; a a Figure 3' is a front view in elevation in section of the in Figure 2,-

partly panic bolt attachmentshown Figured is a-detail v'iewin elevation, show-- in perspective of a lever forming part of the panic bolt attachment.

Referring more particularly to the drawings,10 and 11 designate a pair of doors. The doorl10 is provided with a casing 12mounted on a plate 13 which is secured to the door. Rods 14i and 15 extend, respectively, through a passage 16 in the casing l2-and throughan The rod 14 extends upwardly terminating in a trip member 14 adapted to engage thelatoh member 1-9 provided with a spindle 19 rand positioned'in the casing 19 mounted in the purpose soon to be described. The rod extending downwardly is guided in the casing member mounted adjacent the base or lower portion of the door. This rod 15 comprises at the end thereof the lower panic bolt member 15 adapted for operation within the casing 20 and into and out of locking engagement with the slot 15 provided in the sills, which is also provided with the striking plate 20 for engagement withthe casing member 20 for stopping the door at a desired position in a well known manner. -Adjustably joining the rods 14 and 15 is the threaded collar 22 provided with a lug 22 for the actuation of the rods 14 and 15 by the pivotedpanic door operating lever 21' which is suitably journaled in the casing 12, as shown at 35, and provided with the actuating lug 21 thereof for engagement with the lug 22 on the adjustable sleeve 22. This panic operating lever 21 is provided with the adjustable bolt 65 adapted to engage the plate 13 for the purpose of limiting the movement of said lever 21, as will be easily understood.

The operation of this portion of my device 1 from the foregoing description may be easily understood. Pressure exerted by' an operator on panic bar 45 integrally connecting lever 27 and lever 21 moves said lever 21 anti-clockwise from the position shown in Figure 2 and by means of the engaging lugs 21 and 22 raises the rods 14 and 15. 'This operation elevates the lower bolt 15 to an inoperative position and forces the upper latch or bolt 19 which is mounted on the door jamb upwardly against the pressure of the spring 19" until said member 19 clears the outer and upper end of casing member 18. At this point the door swings outwardly permitting the leaf spring member 18 to swing outwardly from the door and engage the trip member 14*, thereby securing the rods 14 and 15 in elevated position during the swinging or opening movement of the door. The rods 14 and 15 are maintained in the upper position by this-leaf spring 18? as long as the door is'open thereby preventing the lower bolt 15" from scraping or otherwise contacting the floor. hen the door has swung shut the portion 18 of the leaf spring 18 engages the casing 19 and is forced backward-1y into close engagement with the door as appears in Figure'2. Prior to this movement the shoulder'19 of the upper latch or bolt 19 has engaged with the upper end of casing member 18 and been elevated to a position sufficient to clear said casing. When the door closes the latch or bolt member 19 assumes its position as shown in Figure 2 and the leaf spring trip engaging member 18 having been forced release thereof by the conventional knob on the outside. In this part of the device the housing 12' similar tothe housing 12 of Figures 1 to 3 extends outwardly from the plate 13 and is provided with bearings to receive the opposite ends of an auxiliary spindle 23. The spindle has cams 24 and 25 projecting laterally therefrom and disposed upon the opposite ends of the upper end of a lever-27.

The upper end of the lever 27 is bifurcated to provide a pair of spaced arms 30 and 31 to receive the reduced portion 32 of the spindle 23. The arms 30 and 31 are provided with a trunnion 33 received within a bearing 84 formed at the side wall of the casing 12, as shown more particularly in Figure 6. The arm 31 has a trunnion 35 received within a bearing 36 formed in the other side wall of the casing.

A finger 40 extends laterallyfrom the upper end of the lever 27 and is adapted to engage the cam 25 while the finger 41 extends from the opposite side of the lever and is adapted to engage the underface of the cam 24. A spring 42 has itsend, shown at 43, fastened to bosses of the trunnions 33 while a portion, as shown at 44, engages the upper wall of the housing 12 in order to return the spindle to its normal inoperative position after the usual panic bar 45 has been released.

It will be noted that a second lever 27 is pivoted, to the door 11 in spaced relation with the lever 27. The free ends of the levers are connected by the panic bar 45, so that the lever 27 which is connected to the lever 27 by the panic bar 45 when rocked by said bar will operate the auxiliary spindle 23 which is adapted to have its inner end connected to a standard spindle 51 as will be presently explained. This construction is employed in the attachment in connection with the standard door lock 52 which is operated exteriorly of the door 11 by means of the spindle 51 and a knob 58. In this case the plate'18 is extended upwardly and se' cured at 54 to the door 11. A bushing 55 is mounted in an enlarged opening 56 in the plate 13 which in turn has a bearing 57 to receive the inner end of the auxiliary spindle 23.

The inner bifurcated end 60 of the spindle operated from the interior '51 receives the reduced portion 61 of the spindle23. The bifurcated portion and the reduced portion of the spindle 23 have fiat faces which are in contact with each other so that when the knob 53 is revolved not only the spindle 51 will be locked but the spindle 23. Will likewise be revolved without acting on the lever 27. l l

A stop in the form of a bolt is secured inthe lever 27 and is adapted to engage the plate 13 for limiting the inward movement of the lever 27 when it is rocked upon its trunnions 33 and 35.

The operation of this portion of my device is as follows: The device is adapted to be operated not only by the panic bar 45 but by the knob 53. When the bar 45 is moved the levers 27 are rocked causing the'finger 40 to press downwardly on the cam 25 While the finger 41' presses upwardly on the cam 24 thereby causing rocking of the auxiliary spindle 23. lVhen the bar 45 is released the spring 42 will return the auxiliary spindle 23 and likewise the lever 27 to its normal inoperative position. 1

As is easily understood the usual locking mechanism, shown at 52, is adapted to be of the room by means ofthe panic bar 45 and the levers 27 and 27 the bolt from its keeper exteriorly of the room or building It will thus be seen that the top latch has been designed to prevent the push rod and bolt from droppingwhenthe standing leaf is in an open position. By the above described construction, a noiseless release for the push rod, top and bottom bolt is provided. and the complete push rod and lever fication in right or left hand construction.

spindle at one side of the pivot for the lever,

The housings 18 and 20 are constructed exactly identical with one another thereby leading to simplicity of manufacture and desirable interchangeability.

I claim:

by means of the door knob by the door locki or the lock may be actuated to release Apanic bolt attachment for standard door locks comprising a casing provided withbearings, a spindle mounted in the bearings, a door locking means connected withthe spindle, a lever having a pair of spaced arms pivotally mountedin the casing, the spindle be- 2 ing located between the arms, a cam on the a second cam on the spindleat the other side of the pivot, a finger on one arm engageable With one cam for moving the spindle in one direction, and a finger on the other arm enng means will be actuated.

WVALTER E. KELLY. 

